RUMOUR MILL: Barcelona considering move for Dele Alli | Tottenham preparing another push to sign Ross Barkley | Roma to make second bid for Riyad Mahrez | Chelsea told they have one week to sign Pierre-Emerick Aubameyang | Manchester City closing in on deal for Benjamin Mendy | West Ham hope to complete signing of Marko Arnautovic | Virgil van Dijk could still become a £60m Liverpool signing